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Building / Installing stairs...


jmazur's Avatar
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02-26-05, 06:52 PM   #1  
jmazur
Building / Installing stairs...

so i'm just about ready to tackle my basement stairs....

running around the house outside to get downstairs via the bilco just isn't cutting it for me. not to mention, i'm getting tired of smacking my head on that damn thing!

ok here's my difficulty:

total rise is 86.5", and was planning on using a 7" riser with an 11" run.
i've calculated my total run to be approximately 121".

the floor opening is 30" wide, but i'm not really sure how long the floor opening should be.

any suggestions?

thanks...

 
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Joe.Carrick's Avatar
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02-27-05, 11:51 AM   #2  
You need to m ake it long enough so that there is 6'6" clearance above the line of the stair nosings. With 7" risers & 11" treads this will be about 11 feet, depending on the thickness of the floor.

You will need at least 13 risers to get down 91" (78" head clearance plus 13" allowance for floor thickness) .

You might want to go with something a little steeper. Most codes allow stairs for this purpose to be as steep as 8" rise and 9" tread. This could reduce the distance to about 8-1/2 feet.

 
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03-02-05, 05:08 AM   #3  
jmazur
thanks....
i appreciate it.

you're suggestion sounds good.
11' wouldn't really work out too well for me.

--j

 
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